2012
DOI: 10.1002/aenm.201200650
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High Performance Thermoelectricity in Earth‐Abundant Compounds Based on Natural Mineral Tetrahedrites

Abstract: Materials and Methods Tetrahedrite synthesis: Cu 12-x (Fe,Zn) 2-x Sb 4 S 13 samples were synthesized by direct reaction of the starting elements-Cu(99.99 %, Alfa-Aesar), Sb(99.9999 %, Alfa-Aesar), and S, Zn, Fe (99.999%, Alfa-Aesar). The elements were weighed out in stoichiometric proportions using a high-precision Mettler balance; typical charges were on the order of 5 grams total, with individual element masses weighed out with an accuracy of 0.0005 g (0.5 mg). The stoichiometric proportions of the elements … Show more

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Cited by 495 publications
(640 citation statements)
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“…[11][12][13][14][15] Apart from its thermoelectricity, Cu 12 Sb 4 S 13 exhibits intriguing physical properties such as an MIT and a simultaneous sudden decrease in the magnetic susceptibility χ at 85 K, 11,16) which is reminiscent of thiospinel CuIr 2 S 4 . 9, 10) However, understanding this transition is not intuitive be- * E-mail address: shunsaku@science.okayama-u.ac.jp cause of the small fraction of magnetic Cu 2+ (3d 9 , S = 1/2) in Cu 2+ 2 Cu + 10 Sb 3+ 4 S 2− 13 with respect to the formal valence.…”
mentioning
confidence: 99%
“…[11][12][13][14][15] Apart from its thermoelectricity, Cu 12 Sb 4 S 13 exhibits intriguing physical properties such as an MIT and a simultaneous sudden decrease in the magnetic susceptibility χ at 85 K, 11,16) which is reminiscent of thiospinel CuIr 2 S 4 . 9, 10) However, understanding this transition is not intuitive be- * E-mail address: shunsaku@science.okayama-u.ac.jp cause of the small fraction of magnetic Cu 2+ (3d 9 , S = 1/2) in Cu 2+ 2 Cu + 10 Sb 3+ 4 S 2− 13 with respect to the formal valence.…”
mentioning
confidence: 99%
“…4,5 Recently, many new materials with high ZT values, owing primarily to their intrinsically low κ L , have been found, including Cu 3 SbSe 3 , 6 Cu 2 Se, 7 SnSe, 8 CdSb, 9 InTe 10 and Cu 12 Sb 4 S 13 . 11 Exploring the origin of the intrinsically low lattice thermal conductivity and linking it to the nature of chemical bonding and peculiarities in the crystal structure are not only of fundamental interest but also have major implications regarding the practical aspects of the thermoelectric energy conversion. 12 Previous investigations, which have searched for low thermal conductivity compounds, focused on complex crystal structures and materials that have a large unit-cell volume and a large molecular weight.…”
Section: Introductionmentioning
confidence: 99%
“…11 These works were followed by several reports on tetrahedrites Cu 12−x Tr x Sb 4 S 13 (Tr: 3d transition metals and Zn). [12][13][14] To date, many researchers have investigated TE properties of various kinds of materials based on Cu-S, as will be mentioned below. The TE properties have been reviewed on the sulfides, 15,16 binary sulfides, 17 Cu-based materials, 18 and tetrahedrites, 19 respectively.…”
Section: Introductionmentioning
confidence: 99%